I just calculated for my GF what it would cost to stay at the world for an entire year and it was roughly something about 120.000 $ for one year assuming you stay at the Polynesian (based on prices we have to pay at our local travel agency) with two premium annual passes and always dining at the parks and resorts without dining plan. I left out any shopping costs however. If you had the money would you do it? An entire year at the world? Of course you could change the resort after a few weeks but as the Poly is one of the most expensice resorts with the exception of the GF this doesn't change the costs for accomodation, at least not increase them.